摘要:
A compound selected from the group consisting of formula I-1, II-1, III-1 and IV-1: or a compound selected from the group consisting of: 2-(hydroxylamino)hexane, 3-(hydroxylamino)hexane, 2-(hydroxylamino)octane, and 3-(hydroxylamino)octane, wherein: R 7 and R 9 are independently linear C 2 -C 17 alkyl; R 11 is an unsubstituted linear C 2 -C 17 alkyl; R 8 is H or linear C 1 -C 8 alkyl; R 10 and R 14 are independently H, linear C 1 -C 8 alkyl, or CH 2 OH, or R 9 , R 10 , and the carbon to which they are attached form an eight membered cycloalkyl ring; R 12 is H, an unsubstituted linear C 1 -C 8 alkyl, or CH 2 OH, or R 11 , R 12 , and the carbon to which they are attached form a C 9 -C 11 cycloalkyl ring; R 13 is C 2 -C 20 alkyl, C 3 -C 12 cycloalkyl, aryl, or aryl-alkyl-; R 14 is H or C 1 -C 12 alkyl, or R 13 and R 14 together with the carbon to which they are attached form a C 3 -C 12 cycloalkyl ring; R 15 is H, or R 14 , R 15 , and the atoms to which they are attached form an oxazolidine ring that is optionally substituted with C 1 -C 6 alkyl; and R 16 is H, C 1 -C 12 alkyl, C 3 -C 12 cycloalkyl, or aryl; provided that: when the compound is selected from formula I-1, the total number of carbons in R 7 and R 8 , together with the carbon to which they are attached, is 10 to 18; and the compound is not 1-nitrodecane, 2-nitrodecane, 1-nitroundecane, 2-nitroundecane, 3-nitroundecane, 4-nitroundecane, 5-nitroundecane, 6-nitroundecane, 1-nitrododecane, 2-nitrododecane, 3-nitrododecane, 4-nitrododecane, 5-nitrododecane, 6-nitrododecane, 1-nitrotridecane, 2-nitrotridecane, 3-nitrotridecane, 6-nitrotridecane, 1-nitrotetradecane, 1-nitropentadecane, 1-nitrohexadecane, 2-nitrohexadecane, 1-nitroheptadecane, 1-nitrooctadecane, or 2-nitrooctadecane; when the compound is selected from formula II-1, if R 10 is H or linear C 1 -C 8 alkyl, the total number of carbons in R 9 and R 10 , together with the carbon to which they are attached, is 5 to 18; or if R 10 is CH 2 OH, R 9 is linear C 12 -C 16 alkyl; and the compound is not 2-nitro-1-hexanol, 2-nitro-1-heptanol, 2-nitro-1-octanol, 2-methyl-2-nitro-1-heptanol, or 2-nitro-1-dodecanol; when the compound is selected from formula III-1, if R 12 is H or linear C 1 -C 8 alkyl, the total number of carbons in R 11 and R 12 , together with the carbon to which they are attached, is 6 to 18; or if R 12 is CH 2 OH, R 11 is linear C 7 -C 17 alkyl; and the compound is not 2-amino-1-heptanol, 2-amino-2-methyl-1-hexanol, 2-amino-1-octanol, 2-amino-2-ethyl-1-hexanol, 2-amino-1-nonanol, 2-amino-2-methyl-1-octanol, 2-amino-1-decanol, 2-amino-2-octyl-1,3-propanediol, 2-amino-2-butyl-1-hexanol, 2-amino-1-undecanol, 2-amino-1-dodecanol, 2-amino-2-decyl-1,3-propanediol, 2-amino-1-tridecanol, 2-amino-2-methyl-1-dodecanol, 2-amino-1-tetradecanol, 2-amino-2-dodecyl-1,3-propanediol, 2-amino-2-methyl-1-tridecanol, 2-amino-1-pentadecanol, 2-amino-2-tridecyl-1,3-propanediol, 2-amino-1-hexadecanol, 2-amino-2-tetradecyl-1,3-propanediol, 2-amino-2-methyl-1-pentadecanol, 2-amino-2-hexyl-1-decanol, 2-amino-1-heptadecanol, 2-amino-2-pentadecyl-1,3-propanediol, 2-amino-1-octadecanol, or 2-amino-2-hexadecyl-1,3-propanediol; and when the compound is selected from formula IV-1, if R 13 is an ethyl group, R 14 is not H; and the compound is not 5-propyl-1-aza-3,7-dioxabicyclo[3.3.0]octane, 4,4-diethyl-1-oxa-3-azacyclopentane, 3-oxa-1-azaspiro[4.4]nonane, 3-oxa-1-azaspiro[4.5]decane, or 3-oxa-1-azaspiro[4.7]dodecane.
摘要:
The invention relates to a method for producing (S)-2-amino-1-propanol (L-alaninol) from (S)-1-methoxy-2-propylamine via the hydrochloride of (S)-2-amino-1-propanol and subsequent reworking.
摘要:
The invention relates to a method for producing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound, selected from the group comprising ammonia, primary and secondary amines, in the presence of a zirconium dioxide-containing catalyst and a nickel-containing catalyst. The invention is characterised in that the catalytically active weight of the catalyst, prior to reduction with hydrogen, contains oxygen-containing compounds of zirconium, copper and nickel and oxygen-containing compounds of one or more metals, selected from Sb, Pb, Bi and In.
摘要:
The invention relates to a method for producing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound, selected from the group comprising ammonia, primary and secondary amines, in the presence of a zirconium dioxide and nickel-containing catalyst. The catalytically active mass of the catalyst, prior to its reduction with hydrogen, contains oxygen-containing compounds of zirconium, copper, nickel and cobalt and 5.5 to 12 wt% of oxygen-containing compounds of molybdenum, calculated as MoO3.
摘要:
The invention concerns a method for producing optically active hydroxy-, alkoxy-, amino-, alkyl-, aryl- or chlorine-substituted alcohols or hydroxycarboxylic acids having 3 to 25 carbon atoms or their acid derivatives or cyclization products by hydrogenating the correspondingly substituted optically active monocarboxylic acids or dicarboxylic acids or their acid derivatives in the presence of a catalyst whose active constituent consists of rhenium or contains rhenium and at least one additional element of atomic numbers 22 to 83, with the provisions that: a) the at least one additional element of atomic numbers 22 to 83 is not rhenium, and; b) when producing optically active 2-amino-, 2-chloro-, 2-hydroxy- and 2-alkoxy-1-alkanols by the catalytic hydrogenation of correspondingly optically active 2-amino-, 2-chloro-, 2-hydroxy- and 2-alkoxy carboxylic acids or their acid derivatives, the at least one additional element of atomic numbers 22 to 83 is not palladium nor platinum.
摘要:
Disclosed are chiral binaphthol derivatives as alanine racemase mimics having the ability to recognize amino alcohols selectively on the basis of chirality and transform amino acids from an L-form into a D-form. Methods for the optical resolution of amino acid or amino alcohol and for the optical transformation of D- and L-forms of amino acids using the binaphthol derivative are also provided.
摘要:
Severely sterically hindered secondary aminoether alcohols are prepared by a process comprising reacting a ketene with sulfuric acid to produce an anhydride which is then reacted with, to cleave the ring of, a dioxane to yield a cleavage product which is then aminated using an amine, followed by hydrolysis with a base to yield the desired severely sterically hindered secondary aminoether alcohol.
摘要:
The present invention relates to an amine derivative of formula I, its isomer, racemate or optical isomer, pharmaceutical salt, its amide or ester, a medicinal composition containing these, and the preparation of the same. The invention also relates to the use of these compounds in preparing medicines for preventing or treating cardiovascular diseases, diabetes, bronchus and urinary system smooth muscle convulsion, and nerve damage due to ischemia and anoxia. These compounds can be used to treat hypertension, angina, cardiac infraction, congestive heart-failure, arrhythmia, diabetes, bronchial spasm diseases, bladder or ureter spasm diseases, and depression.
摘要:
The present invention relates to a process for preparing an ethanolamine having an improved colour quality. The process comprises contacting ethanolamine with an activated carbon free of one or more metals chosen from Re, Ru, Rh, Pd, Os, Ir, Pt and Ag. The contacting can be carried out at a temperature of from 10 to 200°C, and during.a period sufficient to reduce the colour of the ethanolamine, in particular a period such that the colour index (as measured according to the ASTM standard D 1209) of the ethanolamine becomes equal to or less than 50 or 40 Pt/Co. The contacting can be carried out during or after the stage of preparation of the ethanolamine, preferably during or after the stage of purification of the ethanolamine. The invention also relates to a process for manufacturing a triethanolamine (TEA) having an improved colour quality, comprising a stage (i) of synthesis of the TEA by contacting ammonia with ethylene oxide in aqueous medium, a stage (ii) of separation of a crude TEA from the aqueous medium and a stage (iii) of purification of the TEA by distillation. The process in addition comprises contacting the crude or purified TEA with an activated carbon free of one or more metals chosen from Re, Ru, Rh, Pd, Os, Ir, Pt and Ag, after the separation stage (ii), or during and after the purification stage (iii). The advantage of the claimed invention is to provide an ethanolamine which has an improved colour quality far more resistant over time, and which is obtained in the absence of any additive or metal catalyst known to contaminate the ethanolamine.
摘要:
The invention relates to a method for producing optically active amines. The invention also relates to a method for producing racemic amines, which can be racemically split using optically active carboxylic acids or enzymes. The invention additionally relates to racemic and optically active amines as well as to optically active amides.